What are the characteristics of transitional epithelial cells?

Transitional epithelial cells, also known as urothelial cells, line the urinary bladder and parts of the ureters and urethra. These cells have unique characteristics that allow them to accommodate the stretching of the bladder as it fills with urine. One of the defining features of transitional epithelial cells is their ability to change shape, transitioning from cuboidal to a flattened squamous appearance when the bladder is distended.

Option indicating that these cells are specific to the urinary bladder is correct because the transitional epithelium is a distinctive feature found in the urinary system, particularly in the structures that stretch and contract. The ability of these cells to undergo significant changes in shape and size makes them specifically adapted for their function in the urinary tract.

Other options, while they may pertain to different aspects of urinary analysis, do not accurately describe the primary characteristics of transitional epithelial cells. For instance, although sloughing off cells can occur in various conditions, it is not a defining feature exclusive to transitional epithelial cells. Similarly, while the presence of transitional epithelial cells might be noted in cases of infection, they are not directly indicative of bacterial infection. Finally, transitional epithelial cells possess regenerative capacities, which enables them to repair and replace lost or damaged cells.